Median and range

 Median is the middle number when data are arranged in numerical order; if there is an even number of data, the median is the mean of the two middle numbers.

Range is the difference between the greatest and least numbers in a set of data.

For example, in the following set of numbers;

8, 10, 14, 21, 32, 64, 71

The median is 21, as it is the middle number in the set when arranged in order.

To find the range I take the greatest number, 71, and the smallest number, 8, and subtract them.  The range is 63

In the following set:

12, 24, 26, 28, 38, 40

There is an even amount of numbers.  The two middle numbers are 26 and 28.  If I find the mean of 26 and 28, I will get 27.  The median of the above set of numbers is 27

To find the range I take 40 and subtract 12 to get 28.  The range of this set of data is 28.

Watch the following video on how to find the median.


 Now that you have a better understanding of median, practice finding the median in the form below.  Click the link!

https://forms.gle/SdfeeRP16EP3fNPM6